Memory Foam Wrist Rest for Computer Keyboard, Mouse, Ergonomic Design, 2-Piece Set, Black ULTRA THICK MEMORY FOAM: Experience enhanced comfort while you work; the thickest memory foam content in the wrist rest offers an ergonomic, slow-rebound design for unparalleled comfort; the inner foam measures nearly 3 cm in thickness; you'll never want to work without this support again. ERGONOMIC DESIGN: Say goodbye to sore wrists and fingers while typing and using a mouse; these rests are designed to alleviate sore muscles, stress, and aches by elevating your wrists, allowing your muscles to move freely without being weighed down. NON-SLIP BACKING: The extremely durable bottom layer of the rests is designed to stay put on most desk surfaces, so you can worry less about adjustments and focus on your work. SUPERIOR CONSTRUCTION: Featuring a 3-layer design, these rests are built for long-lasting use; the durable rubber bottom stays in place on most surfaces; thick inner memory foam material provides extra support; the soft spandex top layer ensures added comfort; the wrist rest measures 43 x 8.9 cm, making it perfect for most desks; the mouse pad measures 15.2 x 8.4 cm. STAIN AND WATER REPELLENT: The top spandex layer is water and stain repellent, helping it last for years; to clean, simply wipe with a damp cloth and allow to air dry.